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Finding the Fourth Proportional to 3,266.38, 4,900.40 and 957.88

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Solution

The fourth proportional to 3,266.38, 4,900.40 and 957.88 is: 1,437.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,266.38 : 4,900.40 = 957.88 : x
  2. Step 2: Convert to fraction form
    3,266.38/4,900.40 = 957.88/x
  3. Step 3: Cross multiply
    3,266.38x = 4,900.40 × 957.88
  4. Step 4: Simplify right side
    3,266.38x = 4,693,965.86
  5. Step 5: Solve for x
    x = 4,693,965.86/3,266.38
  6. Step 6: Final answer
    x = 1,437.06

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.